Review for study of prestressing systems for all structural element

Pt not only give the problems beautiful solution, but he also showed us how to build it., Now a days , as architectural demand ,structure become more slender and have a very long span ,by RCC we cannot fulfill architecture requirement ,in some case RCC also fulfill architecture requirement for a certain span length but after span RCC structure become costly , so itís a research work which structure is economical for post tensioning ,for a span, also high labour cost countries is to avoid external scaffolding, for low-rise structures to precast as far as practical and to prestress concrete, not only horizontally, but also vertically so as to resist lateral loads. In most structures today, the increasing use of prestressing has given new freedom to any concept of forms previously considered uneconomic or unfeasible or unduly bulky to resist loads. Curvilinear forms have produced an entirely new vocabulary for architecture that inprevious decades would have been thought of as impractical. The use of prestressing has also been found to be a way of achieving waterproof flat roof surfaces even without the application of normal bituminous waterproofing, since the concrete is kept in continual compression and resists cracking which can otherwise lead to water penetration in the long term.